Budding and grafting plaster



Sepia. 22, 1931. P. B. LHOMMEDIEU 1,824,574

BUDDING AND GRAFTING PLASTER Filed June 1, 1929 Patented Sept. 22,. 1931UNITED STATES PATENT OFFICE PAIGE IB. LHOMMETDIEU, or NEW BRUNSWICK, NEWJERSEY, ASSIGNOR TO JOHNSON & JOHNSON, on NEW BRUNSWIOK,,NEW JERSEY, ACORPORATION on NEW JERSEY BUDDING AND GRAFTING PLASTER Application filedJune 1,

10 punching, to enable the plaster'to be contour-fitted in itsapplication to the plant; and in masking the adhesive face of theplaster material, and preferably before incising or perforatingit, bythe application 15 thereto of a strip of muslin or other material havingproper masking capacity and also the capacity to support the plastermaterial during the mechanical work of punching or cuttingas well asultimately to prevent dogearing or buckling of the edges of the incisedor perforated areas.

The novel plaster is illustrated in the annexed drawings wherein Figures1 and 3 show masked plasters equipped for contour fitting by theprovision of perforated areas inside the marginal limits.

Figs. 2 and 4 are modifications in which the margins are notched orotherwise in cised.

Fig. 5 exemplifies permissible variations in the outline of the plaster.

Fig. 6 illustrates the application of the,

masking or protecting element in the punching operation. According tothe inventlon, plasters 5 are provided, for example, by fractionaldivision of a strip or web of adhesive fabric, which may be surgicaladhesive tape or plaster or any other approved fabric, including paper,

having an adhesive face 6. To insure proper I sealing application of theplaster in budding and grafting operations by having it self-f adaptableto irregularities in the surface to which it is applied, the continuityof the body structure is interrupted toprovide for contour fitting ofthe plaster. This may be manifested in various ways. F or-eXample, Fig.1 shows a clrcular opening 7 and Fig. 3 shows cross-slits 8, near oneend of the 1929. Serial No. 367,709.

plaster and inwardly of the side margins;

and Figs. 2 and 4 show, respectively, a semicircular notch 9' and astraight out 10 in the margins.

.An important feature of the invention 1s the provision of a temporarymasking elei ment or facingll. It may be crinoline, paper or otherappropriate material. The

former is preferred because of the facility' with which it may behandledand because of its stiff and rugged qualities. Aside from itsmasking function or oflice of protecting the adhesive surface until theplaster is to be used, the facing element 11 is importai'rt as abackbone or support during the cutting and perforating of the plasterand also in such operation prevents promiscuous sticking and fouling ofthe dies; and it s further important as areinforce to prevent dogcaringor buckling of the edges of the incised or perforated portions byholding such edges in the general plane of the plaster.

Fig. 5 shows a variation in the general form or shape of the plasterinthe elliptical unit 12..

Having described my invention, I claim,

1. As an article of manufacture, a patch for contour fitting purposes inthe budding and grafting industry, comprising a sheet of fabricadhesively coated on one side, and a detachable facing applied to saidcoated area and extending marginally beyond-the coated fabric to preventdog-caring, and buckling of the same, and to afford purchase points forreadily separating it from the coated fabric. 2. As an article ofmanufacture, a patch for diversified use in the budding andgraftmgindustry, comprising a plaster fabric shape having an incised bodyportion whereby. it may be stretched or 'moulded to fit irregularsurfaces, and a relatively stiff crinoline covering for the coated sideof the shape and extending on all sides beyond the marginal limitsthereof to keep the incised portions in a common plane.

Intestimony whereof I afiiX my signature.

PAIGE 'B, LHOMMEDIEU.

